shikamaru317 said:

Then they seem to imply that PS5 will only have BC with around 100 PS4 games on release, while MS is teasing that the full XB1 library, including OG Xbox and 360 games, will be BC on Series X from day one, with enhancements like 4K and HDR that require no support from the original devs.

It's probably why xbox first party is so bare, they are probably all working on backwards compatibility :P

I am not to concerned about backwards compatibility but it would be nice to know if I can occasionally play some of my PS1 classics from the PS3 PSN or disc in the future.  Games after that don't matter that much to me because I think they age terribly.